The Nazca Plate lies between the South American Plate and the:

The Nazca Plate is an oceanic tectonic plate in the eastern Pacific Ocean, off the western coast of South America. It lies between the Pacific Plate to the west and the South American Plate to the east.

Name:

It is named after the Nazca region of southern Peru, famous for the ancient Nazca Lines, giant designs drawn in the desert.

Boundaries of the Nazca Plate:

• West: the East Pacific Rise, a mid-ocean ridge where the Nazca and Pacific plates move apart and new sea floor is created.
• East: the Peru-Chile Trench (Atacama Trench), where the Nazca Plate sinks beneath the South American Plate.
• North: the Cocos Plate.
• South: the Antarctic Plate.

Effects of the Nazca Plate sinking under South America:

• The Andes Mountains: As the Nazca Plate pushes beneath South America, the edge of the continent has been compressed and uplifted to form the Andes, the longest continental mountain range in the world (about 7,000 km).
• Volcanoes: Many active volcanoes in the Andes, such as Cotopaxi in Ecuador, are formed by magma produced as the plate sinks.

Earthquakes: The region has some of the world's strongest earthquakes. The 1960 Valdivia earthquake in Chile, with a magnitude of 9.5, is the most powerful earthquake ever recorded.

The Peru-Chile Trench is about 8,000 metres deep at places.

Movement:

The Nazca Plate moves eastward relative to South America at about 7 to 8 cm per year, one of the faster plate motions.

Flat-slab subduction:

In some parts, the Nazca Plate sinks at a very shallow angle beneath South America, which has affected volcanic activity and mountain building far inland.

Ocean features:

• The plate carries the Galapagos hotspot region near its northern edge and the Juan Fernandez Ridge.
• The cold Humboldt (Peru) Current flows over the waters above the plate near the coast, supporting rich fisheries.

Why not the other options?

• ✗The African, Indian and Arabian plates are not neighbours of the Nazca Plate.